Knotting mechanism.



L. B. WYGANT. KNOTTING MECHANISM.

APPLICATION FILED 001222, 1901.

Patented Jan. 12, 1909.

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L. B. WYGAN'IH- KNOTTING MECHANISM.

APPLIUATIOR FILED 0M. 22, 1907.

Patented Jan. 12, 1909.

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KNOTTING MECHANISM.

APPLICATION FILED 00122, 1907.

909,272. Patented Jan. 12. 1909.

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L. B. WYGANT.

KNOTTING MECHANISM.

APPLICATION FILED 00T.22, 1907.,

Patented Jan. 12, 1909.

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KNOTTING MECHANISM. APPLIUATION FILED OCT. 22, 1907. 909,272, PatentedJan. 12. 1909.

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APPLICATION-FILED our. 22, 1907.

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atliozmu IUI QITEIE PATENT LEWIS B. WYGANT, OF BELLEVUE, OHIO, ASSIGNOROF ONE-HALF TO THE OHIO OULTIVATOR COMPANY, OF BELLEVUE, OI-IIO. ACORPORATION OF OHIO.

KNOTTING Iv IE CHANISM.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed. October 22, 1907. Serial No. 398,652.

To all whom it may concern:

Be it known that I, LEWIS B. l VYGANT, a citizen of the United States,residing at Bellevue, in the county of Huron and State of Ohio, haveinvented certain new and useful Improvements in Knotting Mechanism, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

his invention relates to knotting mechanism, and more particularly tomechanism for automatically tying or fastening together the ends of balewires employed in binding a bale of hay or other material.

The object of the invention is to provide a mechanism of this characterwhich will be simple in construction, comprising but a few parts, andsimple in its operation, wherefore there will be little liability of theparts becoming disarranged or broken in operation; to provide adequatemeans for clamping the bale wires in position. while the knottingmechanism is in operation; to provide suitable means for cutting thewire at the proper point; and further, to so improve the constructionand arrangement of the mechanism as a whole as to improve the operationthereof and render the same accurate and certain in its operation.

v l'ith these objects in view my invention consists in certain novelfeatures of construction and in certain. parts and combinationshereinafter to be described, and then more particularly pointed out inthe claims.

In the accompanying drawings, Figure 1 is a top plan view of a balingpress embody ing my invention; Fig. 2 is a side elevation of the same;Fig. 8 is a top plan view of the knotting mechanism; Fig. is a frontelevation of the same; Fig. 5 is a detail view of the disk and mutilatedpinion; Fig. 6 is a detail view of the disk and its actuating ratchet;Fig. 7 is a detail view, partially in section, of the twister orknot-forming mechanism; Fig. 8 is an end view of the operating mechanismfor said twister; Fig. 9 is a detail view of the rack and. pinionforming part of said operating mechanism; Fig. 10 is a detail view ofthe rack-bar frame; Fig. 11 is a detail view of the clamping mechanism;Fig. 12 is a detail view of the cutting mechanism; Fig. 13 is a detailview of the actuating finger for said cutting mechanism; Fig. 14 is adetail view of a knot formed by my knotting mechanism, and Fig. 15 is aside elevation of the knotting mechanism.

In these drawings, I have illustrated my invention as embodied in anautomatictying hay press of known construction, the main features ofconstruction and operation of the press and the power transmissionmechanism being shown and described in the patents granted to me Nov.10, 1903, and Dec. 1, 1906 and numbered 743,998 and 837,530,respectively, and in the application filed by me on the 3rd day ofDecember, 1906, Ser. No. 345,994.

The press as a whole is indicated by the reference numeral 1 and hasmounted at one end thereof suitable gearing 2 adapted to be actuatedfrom any suitable source of power and to rotate the gears 1, which aremounted on stud shafts 3 and have connected thereto one end of a pitman5, the other end of which is connected to a plunger 6 in the compressionchamber 7. A sprocket wheel 8 is also mounted on one of the shafts 3 andis connected by means of a sprocket chain 9 with a sprocket wheel 10mounted on a hori zontal shaft 11 journaled in a suitable hearing formedin the brackets 12 which are mounted upon the press. This shaft 11 isprovided with a suitable bevel pinion, adapt ed to mesh with a bevelgear 14 mounted on a vertical shaft 15 which also has mounted thereon,above the beveled gear 14, a mutilated bevel gear 17, which is adaptedto mesh wi'h a bevel pinion 18 on a second horizontal shaft 19, which isalso journaled in hearings in the brackets 12 and is provided on one endwith a crank arm 20 which is connected by means of a suitable pitman 21with a rack-bar 22 extending longitudinally of the press and slidablymounted in bearings 23 mounted on the frame of said press 1. The rackbar22 is adapted to engage a pinion 24 mounted on a vertical shaft 25 uponwhich are mounted one or more gears 26 adapted to mesh with a rack orracks 27 extending transversely of the press, connected with and adaptedto operate the needle bar or bars 27 (Fig. 3), which feed the wire fromthe spool across the compression chamber and about the bale within thesame. lhe shaft 19 is provided at its opposite end with a second crankarm 28, to

' or more horizontal brackets or supporting members 31 secured thereto.shaft 32 is journaled in bearing-lugs 3'3 and 34 carried by one of thebrackets 31 and eX- tendsa, direction substantially parallel withthelength of; the wires Whenthe same are fed transversely of, thecompression.

chamberby the needle bar; 27 Mounted upon the inner end of the shaft 32and be yondthe bearingf34isa disk 35 having a series of recesses 36-formed at intervals about the periphery thereof; In the presentinstance, t ereare, four of these recesses and the wallsof the same arecurved in the mannershown so, as to provide a seriesof hooks 37 aboutthe periphery of the disk. Loosely mounted upon the shaft 32, andpreferably between the bearing lugs 33 and 34', is' a mu? tila-tedpinion381 having rigidly secured to one side thereof a disk 39, preferably ofa diameter'somewhat reater than the diameter ofthe pinion. igidlysecuredto the shaft 32; and on the side-of the disk 39 opposite the pinion 38is a ratchet or collar 40 having a series of recesses 41 in theperiphery thereof, which recesses are adapted to be engaged by thespring-pressed pawls42, secured to the adjacent side of the disk 39',and to rotate the collar 40. and theshaft32 when thepinion 38 is rotatedin one direction and to permit the, collar 40, and the shaft 32 toremain stationary when the pinion is rotated in; the opposite directionThe shaft 32, is provided on. its outer end with: asuitable collar orwasher 43 and abearing. plate 44, adapted tobe secured to the end of theshaft 32 and against the collar 43 by asuitable screw 45, therebyholding the shaft against longitudinal movement and permitting thesameuto rotate freely in its bearings. A- second shaft 46 is journaled'ina suitable bearing;;47 mounted onthe member 31 and 6X- tends ;at anangle to the shaft 32, which angle, in the present instance, is somewhatgreaterthan a right angle. provided on its inner end with a bevel gear48, adapted to mesh with a bevel pinion; 49

rigidly-secured to a.- short shaft 50 which is j ournaled in suitablebearings 51 and 52 mounted onthe member 31. One end ofthe shaft 50 hassecured thereto a knotter arm or, twister-53 which is adapted toberotated about a, transversehorizontal axis and which extends v.atsubstantially right angles to the lengthofithe shaft 50 and may besecured; thereto in any suitable manner, being ShOWl'll'll'l lZhBpresent instance as formed integral therewith and provided with abearing A suitable This shaft is plate 54 adapted to engage the bearing52 to prevent longitudinal movement of the shaft 50 in one direction,such movement in the other direction being prevented by the pinshaft 46near the opposite end thereof and has secured thereto a suitable disk 56which is preferably of a diameter greater than the diameter of thepinion 55. A suitable ratchet or collar 57 is rigidly secured to theshaft 46 on the side of the disk 56; opposite that to which the pinion55 is secured and. is provided with suitable recesses 58 adapted tobeengaged by spring-pressed pawls 59 which are pivotally mounted on theadjacent side of the disk 56, whereby the rotation of the pinion 55; in:one direction will cause the shaft 46 to rotate and impart move'ment tothe twister 53, while the rotation of said pinion in the oppositedirection will not affect the shaft or twister. A disk 60' is rigidlysecured to the shaft 46- beyond the collar 57 and is provided with arecess 61 adapted to receive the end of, a spring pawl 62, asshown. I l

A suitable guide 63 is, mounted adjacent to the twister or knotter arm53 to control the movement of the free ends of the wires in which theknot is being formed. This guide may be of any suitable construction,but, ashere shown, comprisies a plate having two arms arranged atsubstantially right angles one to the other and having theirtends in adirection substantially parallel with the twister 53 when thesame is inits idle position and the other arm 65 extends at substantially rightangles to the arm 64 and having its outer end slightly depressedandterminating close to the vertical member 30 of the supporting frameand preferably in contact with that member. The plate forming the guide63 may be supported in any suitable manner, but I have here shown thesame as secured to the supporting bracket 31, by means of suitablescrews 66, at apoint adjacent to the bearing 47. A verticallyreciprocating rack-bar frame 67' is mounted in suitable-slide bearings68-carried by the supportingframe and is provided with suitablerack-bars 69 and 70 adapted to engage the pinions 38and55,.respectively,

the rack-bar-frame being provided with an gular brackets71 adapted tosupport the rack-bars 69 and 70 in their proper positions to engagetheir respective pinions. A vertically reciprocating movement isimparted to the rack-bar frame 67 by means of thepitman 29, the lowerend of which is pivotally connected toa wrist pin or bearingstud 72secured to said-rack-bar frame.

Suitable means are provided for clamping the bale wires and holding thesame against movement during the operation of the knotting mechanism.This mechanism preferably comprises a lever 7 3 pivotally connected tothe vertical member 30 of the supporting frame 3 as shown at 74, and hasat its outer end a downwardly extending projection or lip adapted toengage the wires and clamp the same firmly in engagement with a partcarried by the member 30 which extends beneath the wires and preferablyhas a groove 76 formed in the upper surface thereof.

To insure the proper positioning of the wires to be engaged by theclamping mechanism and by the twister I prefer to provide the clampingmechanism with means for engaging said wires and moving the same to aposition beneath the lip 75, and, to this end, the arm 77, having itslower end inclined downwardly and outwardly, as shown at 78, andextending to a point somewhat below and beyond the outer edge of the lip75, is pivotally mounted on the outer end of the lever 73 and has aprojection or finger 79 extending at an angle thereto and adapted toengage a pin or projection 80, preferably secured to the member 30, asthe lip 75 moves downwardly, thus moving the lower end of the arm 77inwardly and causing the wires to be engaged by the inclined surfacethereof, and moved to a position beneath the lip 75. A spring 81,connected at one end to the arm 77, above the point of pivotalconnection to the lever 73, and at its other end to sa'd lever, servesto return the arm to its normal position and retain the same in thatposition when the lever is not in operation. The lever 7 3 may be rockedabout its pivotal center to actuate the clamping mechanism in anysuitable manner, but I prefer to connect the same to a rod 82 whichextends upwardly to a point adjacent to the upper bevel gear 1 1 of thetransmission gear and has at its upper end a roller 83 adapted to engagea cam 84 carried by said gear, which is so arranged with reference tothe operation of the knotting mechanism that the cam will engage theroller 83 and actuate the rod 82 and lever 73 at the proper time toclamp the wires and hold the same in position during the twistingoperation.

In Fig. 15 of the drawings 1 have shown in dotted lines the lip 75 inengagement with.

the wires and the knot partially formed. Suitable means are alsoprovided for disengaging the knot from the twister or knotter arm afterthe knot has been completed. This means, in the form here shown,consists of a bar 85 slidably mounted in suitable bearing lugs 86carried by the supporting bracket and has an upwardly extending pinprojection 87 on the end adjacent to the twister. This bar is soactuated. that, when t re clamping mechanism is moved to its operativeposition, the bar 85 and pin 87 will be moved rearwardly or away fromthe twister and the wires, and, when the knot has been formed and theclamping mechanism moves to its inoperative positi in, the bar will bemoved forwardly to bring the pin 87 into engagement with the wires, thusforcing the knot eff of the knotter arm and allov. ing the bale about wiich the wire extends to be removed. The means for so actuating the barpreferably consists of a bell crank lever having its lower end slotted,as sbovn at to receive the pin Q0 carried by the bar 85 and having itsother end connected by means of a link 91 with the outer end of thelever 7 3, whereby the downward movement of the inner end of the leveror the end carrying the lip 75, will cause the bar 85 to move outwardlyor in a direction away from the knotter arm. Both the outer end of thebell crank lever 88 and the lever 73 are provided with a series ofapertures 92 and 93, respectively, whereby the link 01 may bei'tdjustably secured thereto and the throw of the lower end of the bellcrank lever regulated.

The cutting mechanism, which I have provided for severing the bale wirefrom the coil, may be of any suitable description, that which 1 haveherein shown comprising a cutting member 9 1 provided with a cuttingedge and secured to a bracket 95 which is mounted on the supportingbracket 31 adjacent to the recessed disk 35. A movable cutting member ismounted adjacent to the cutting member 9a and is adapted to cooperatetherewith to sever the wire and this movable member preferably comprisesa lever 96 pivotally mounted on the bracket 95 by means of a bolt 97 andhaving its inner end 98 provided with a cutting edge and its outer end09 forming an actuating arm, by means of which movement is imparted tothe inner end thereof. The rack bar frame 67 is preferably provided withan inwardly extending projection or finger 100 which is pivotallysecured to a bracket 101 which is adjustably mounted on the rack-barframe 57 by means of a vertical slot 102 and a screw 103 extendingthrough said slot and engaging said frame. The bracket 101 is preferablyrecessed to form shoulder 1.04 adapted to engage the lower edge of thefinger 100 to limit the downward movement thereof, the finger being heldnormally in engagement with said shoulder means of a spring 105 havingone end connected to said finger and the other end connected to saidbracket. As the frame moves up wardly, the upper edge of the finge 100will engage beneath the arm 99 and move the same about its pivotalcenter, and, as the arm reaches the upper limit of its movement, thefinger 100 v, ill slip off the outer end thereof and continue its upwardmovement. A spring 106 having one end connected to the arm 99 and theother end se cured to a fixed part of the supporting frame, serves toreturn the arm 99 to its lowermost position, which position is fixed bya stop 107 extending outwardly from the supporting frame, and to retainthe cutting mechanism in its inoperative position. A suitable projectionor pin. 108 is mounted on the rack-bar frame 67 above the arm 99 and isadapted to engage the same as the said frame moves downwardly to returnthe arm 99 to its lowermost position in case the cutting mechanism maybecome wedged or for any reason fail to return to its operativeposition. A spring clip 109 is secured to the upper edge of the bracket95 and has at its outer end a downwardly extending projection 110adapted to extend over the ends of the wires and retain the same inposition after they have been cut.

In the operation of the device power is transmitted to the transmissiongear by means of the gearing 2 and sprocket chain 9 and the shaft 19rotated at intervals, the intervals of rotation being controlled by themechanism set forth in the above mentioned patents and which forms nopart of the'present invention. As the shaft 19 and crank arm 20 rotate,motion isimparted' to the rack 22 and the needle bar 27*, and saidneedle bar is moved across the compression chamber and the wire carriedacross the end of the bale which has been formed, thus passing the wirecompletely about the bale. The free end of the needle bar 27 projectsbeyond the side of the compression chamber adjacent to the knottingmechanism in the position shown in Fig. 3, thus carrying the wire withinthe path of the hook formed on the disk 35. The continued rotation ofthe shaft 19 brings into operation the vertically recipro catingrack-bar frame 67, whereby the rack bar 69 rotates the mutilated pinion38'and shaft 32 to impart motion to the disk 35. The teeth on themutilated pinion and on the rack-bar 69 are so proportioned that thedisk 35 is moved through one quarter of a revolution. During thismovement, the wire which lies in the path of the hook 37 is engagedthereby and carried inwardly under the projection 110 of the holdingclip and between the cutting members 94 and 98 of the cutting mechanism.That portion of the wire lying beyond the cutting mechanism is bentabout the disk and is drawn between the same and a resilient clip ormember 111,

thus locking that end of the wire firmly in position and holding thesame against retraction when the wire has been cut. Vz hile the wiresare being moved into this position the cam on the gear 14 of thetransmission gearing has engaged the roller on the rod 80 and operatedthe clamping mechanism, whereby the arm 77 is actuated to move the wiresbeneath the lip 75- and that lip is moved upward movement, the finger100 engages the arm 99 of the cutting mechanism and actuates saidmechanism to sever the ends of the wires, thereby leaving. both endsfree- These end portions are engaged intermediate their extreme ends andthe clamping mechanism by the knotting finger or twister 53 whichpresses the central portion thereof upward, bringing the outer portionsa 'ainst the under side of the arm 64 and ben ing these ends back uponthat portion of the wire lying on the opposite side of the twister, thusbending the end portions upon themselves. As the twister continues itsrotation about'i'ts transverse axis the ends of the wires travel alongthe guide 63 and are held against rotation while the twister 53completes a series of rotations, thus twisting the ends of the wirestogether and forming a firm knot. /Jhen' the twister has made asufficient number of revolutions to form the knot, the roller of therod82 passes off the cam and the clamping mechanism is released and the bar85 and pin 87 move forwardly to force the knot off of said twister, thusreleasing the same and permitting the bale to be removed. Should thestrain exerted upon the knot by the baletend to untwist the wires, whichis improbable owing to the stiffness thereof, the projecting ends of thewires will come into engagement with the side of the bale and thuseffectually prevejntthe knot from turning and the ends of the wire frombeing untwisted.

I have here shown and described mechan ism for forming a single knot inone of the wires of the bale, but it will be readily understood that thedevice may be arranged to knot any number of wires by simply duplicatingthe apparatus here described. Fig. 4 shows knotting mechanism arrangedfor tying two wires. Further, I wish it to be understood that I do notdesire to be limited to the exact details of construction shown anddescribed, for obvious modifications will occur to a person skilled inthe art.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

. 1. In a device of the character described, the combination, withmechanism for passing a resilient member about the material to be bound,of gripping mechanism, cutting mechanism located beyond said grippingmechanism, and twisting mechanism located between said grippingmechanism and said cutting mechanism. 7

2. In a device of the character described, the combination, withmechanism for passing a resilient member about the material to be boundand means for cutting said resilient member, of means for bending thefree end portions of said resilient member upon themselves and twistingtogether said end portions.

3. In a device of the character described, the combination, withmechanism for passing a resilient member about the material to be bound,of means for gripping said resilient member at points removed from theends thereof to hold the same in position, and means for twistingtogether those portions of the resilient member lying beyond saidholding means.

41. In a device of the character described, the combination, withmechanism for passing a resilient member about the material to be bound,and means for gripping said resilient member to hold the same inposition, of means for severing said resilient member at a point beyondsaid gripping means, and means beyond said gripping means for twistingtogether the free ends of said resilient member.

5. A knotter of the character described comprising means for holding awire, a guide for the free ends of said wire, and a rotatable armadapted to cooperate with said guide to twist together the ends of saidwire.

6. A knotter of the character described comprising an arm adapted torotate about a transverse axis, and a guide for a wire consisting of twostationary arms, one extending substantially parallel with saidrotatable arm when the same is in its idle position, and the otherextending at an angle to the first-mentioned stationary arm.

7. A knotter of the character described comprising an arm adapted torotate about a transverse axis, means for moving the wire into the pathof said rotatable arm, clamping mechanism on one side of said arm forsecuring said wire in its adjusted position, and cutting mechanismlocated on the opposite side of said rotatable arm.

8. A knotter of the character comprising a curved guide, a shaftrotatably mounted beneath said guide, an arm carried by said shaft andextending at an angle thereto and adapted to be rotated about atransverse axis to engage a wire and twist together the ends thereof.

9. A knotter of the character described comprising a shaft having abevel pinion on one end thereof, means for rotating said shaft, a secondshaft extending at an angle to said first mentioned shaft, a bevelpinion carried by said second shaft and adapted to mesh with the bevelgear on the firstmentioned shaft, an arm carried by said second shaft,extending at an angle thereto and adapted to engage a wire, and a guidelocated adjacent to said arm for controlling the movement of the end ofsaid wire when the same is engaged by said arm.

described, I

10. A knotter of the character described comprising means for holding awire, an arm, means for rotating the same about a transverse axis,whereby said arm is caused to engage the wire beyond said holding means,and means for controlling the movement of the free ends of said wire.

11. In a knotter of the character described, the combination, with aframe, and a knotforming mechanism carried thereby, of a clamp, adaptedto hold a wire while the knot is being formed, comprising a partextending beneath the wire, and a lever pivo'tally mounted on said framehaving a part adapted to engage the wire and clamp the same against thefirst-mentioned part.

12. In a knotter of the character described, the combination, with aframe, and knotforming mechanism carried thereby, of a clamp, adapted tohold a wire while the knot is being formed, comprising a part extendingbeneath the wire and having a groove in its upper edge, a leverpivotally mounted on said frame having a depending lip adapted to engagethe wire and clamp the same against said grooved part.

13. In a knotter of the character described, the combination, with aframe, and a knotforming mechanism carried thereby, of a clamp adaptedto hold a wire while the knot is being formed, comprising a partextending beneath the wire, a lever pivotally mounted on said framehaving a part adapted to engage the wire and clamp the same against thefirst-mentioned part, and means carried by said lever for moving thewire between said clamping parts.

14. In a knotter of the character described, the combination, with aframe, and knotforming mechanism carried thereby, of a clamp adapted tohold a wire while the knot is being formed, comprising a part extendingbeneath the wire, a lever pivotally mounted on said frame h aving a partadapted to engage the wire and clamp the same against the firstmentionedpart, a finger pivotally mounted on said lever, and means for movingsaid finger about its pivotal center when said lever is moved towardsits clamping position.

15. In a knotter of the character described, the combination, with aframe, and knotforming mechanism carried thereby, of a clamp adapted tohold a wire while the knot is being formed comprising a part extendingbeneath the wire, a lever pivotally mounted on said frame, having a partadapted to engage the wire and. clamp the same against thefirst-mentioned part, a pin mounted on said frame, an arm pivotallymounted on said lever and having a finger adapted to engage said pin assaid arm is moved downwardly to its clamping position.

16. In a knotter of the character described, the combination, with meansfor holding a wire, a guide, and a rotatable arm adapted to tion carriedby said bar, and means for operaaway from the knot on said knotiormingcooperate with said guide to twist together the free ends of the mm, ofmeans for removing the twisted ends of said wire from said arm.

17. In a knotter of the character described, the combination, with aguide, a rotatable arm adapted to cooperate with said guide and twisttogether the ends of a wire, and a clampadapted to engage said wire andhold 1 the same during said twisting operation, of means actuated bysaid clamping mechanism forremoving the twisted ends of said wire fromsaid arm.

18'. In aknotter of the character described, the combination, with aknotforming mechanism, a clamp comprising a lever pivotally. mountedbetween its ends, andmeansfor actuating said lever, of a barslidablymounted nearsaid knot-forming mechanism, a projectively connecting saidbar to said lever, whereby the movement of said lever will movev the pincarried by said bar toward or mechanism.

19. In a knotter of the character described, the combination, with a.frame, knotting mechanism mounted thereon, and a, reciprocatingmemberadapted to operate, said knotting mechanism, of cutting mechanismcomprising a fixed member having av cutting edge, apivotedimember havinga cutting edge, an, arm carried by said pivoted member, and a partcarried by said reciprocating member adapted to engage said arm toactuate said pivoted member.

20. In a knotter of the character described,

the combination, with a frame, knotting eating member and adapted toengage said arm, and a stop to limit the movement of said finger. I i

21. In aknotter of the character described, the combination, with aframe, knotting mechanism mounted thereon, and a reciprocating-memberadapted to operate said knotting mechanism, of cutting mechanismcomprising a fixed member having a cutting edge, a pivoted member havinga cutting edge, an arm carried by said pivoted member, a pivoted armvadjustably mounted on said recip rocating frame and adapted to engagesaid arm, a spring adapted to move said finger in one direction, and astop to limit the movement thereof.

In testimony whereof, I affixmy signature in presence of two witnesses.

LEWIS B. WYGANT; Witnesses E. II. ERnRIoH, EVERT A. KEMP.

inger pivotally mounted on said recipro- L

